100W功率开关电源S-100-24的电路图纸VIP

1 100W 开关电源的电路图纸开关电源的电路图纸 L N G SCK054 IN 110VAC 1.9A S- 100- 24 MW RT 3A250V FS C1 0.1 630V 1/2W 580k R13 TF-096 C2 C3 L1 222M 2kV x2 外壳/大地 2NR1 TNR 15G471K u C4 0.1 630V BD1 D3SB-60-0.5 + C5 220u 200V + C6 C28 200V 110V 220V SW + o - T1 C7 1.0K 250V R1 R2 150k 1/2W Q1 150k 1/2W R3 2SC2625 Q2 2SC2625 100R 2W C8 102 1kV D5 FR155 103 1kV 220u D6 FR155 R32 L2 +V COM COM +V D18 FMX12S 22R1/2W R33 22R1/2W C20 102 1kV C21 102 1kV 100V C23 470u 35V x5 TF-09 103 + C22 + + + + 1k 2W C25C242NR2C26 R37 4.3k LED1 R6 15R D7 T028 + C10 4.7u50V R5 3.9k R7 2.2R1/2W R39R4 150kx2 R10 15R D8 T028 + C114.7u50V R9 3.9k R11 2.2R1/2W R40R8 150kx2 T2 TF-020 IC1 1 1IN+ 3 FEEDBACK 2 1IN-2IN- 15 2IN+ 16 REF 14 4 DTC OUTPUT TL494CN 5 CT 7 GND 6 RTC2 11 Vcc 12 E2 10 8 C1E1 9 CTRL 13 Q3 C1815 Q4 C1815 + C13 50V 4.7u D15 D16 1N4148x2 D14 1N4752 D13 1N4752 R19 3.9k R18 1.5k R17 3.9k R16 1.5k R20 22k C14 102 R31 22k C19 103 R29 681 R30 22k VR 1k C15 222 +V ADJ C27 222 R38 10k C30 103 R22 47k C16 103 R24 5.6k R23 5.6k R25 120k +C17 1u50V R21 12k + C18 22u50V D17 R26 5.6k Q5 C1815 R28 15k R27 1.5k R35 100k R35 100k + C15 47u50V D9 FR104x2 D10 Vcc 1N4148 R12 1.5k IN 220VAC 0.8A OUT 24VDC 4.5A HW.79 94V- 0 S- 100N- R5 2000- 11- 21 对停振故障，往往上来先找启动电路。如上图电路，振荡芯片采用 TL949，芯片在上电期间的供电是 R4、R39、R7 提供 Q1 的初始基极偏流